import axios from 'axios'
import store from '@/store'
import router from '@/router'
import { Message } from 'view-design';
axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'
// 创建axios实例
const request = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  // https://admin.tangzhezu.com/prod-api/

  // '/dev-api' 为实参    process.env.VUE_APP_BASE_API为形参
  baseURL: process.env.VUE_APP_BASE_API,
  // 超时
  timeout: 20000
})
// request拦截器
request.interceptors.request.use(config => {
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false
  let token =store.state.systemToken
  if (token) {
    // console.log(token)
    config.headers['Authorization'] = 'Bearer ' + token
  }
  // get请求映射params参数
  if (config.method === 'get' && config.params) {
    let url = config.url + '?';
    for (const propName of Object.keys(config.params)) {
      const value = config.params[propName];
      var part = encodeURIComponent(propName) + "=";
      if (value !== null && typeof(value) !== "undefined") {
        if (typeof value === 'object') {
          for (const key of Object.keys(value)) {
            let params = propName + '[' + key + ']';
            var subPart = encodeURIComponent(params) + "=";
            url += subPart + encodeURIComponent(value[key]) + "&";
          }
        } else {
          url += part + encodeURIComponent(value) + "&";
        }
      }
    }
    url = url.slice(0, -1);
    config.params = {};
    config.url = url;
  }
  return config
}, error => {
  console.log(error)
  Promise.reject(error)
})

// 响应拦截器
request.interceptors.response.use(res => {
    // 未设置状态码则默认成功状态
    if (typeof res.data === 'string') {
      res.data = JSON.parse(res.data);
    }
    if(res.data){
      if(res.data.data){
        if(res.data.data.total){
          res.data.data.total = parseInt(res.data.data.total);
        }
      }
    }
    const code = res.data.code;

    // 获取错误信息
    const msg =res.data.message 
    if (code == 401 || code == '401') {
      Message.error("登录失效");
      store.dispatch('Logout')
      router.push({
        path: '/login'
      })
    } else if (code === 5000) {
      Message.error(msg);
      return res.data
    } else if (code !== 2000 && code !== 200) {
      Message.error(msg);
      return Promise.reject('error')
    } else {
      return res.data.data
    }
  },
  error => {
    console.log('err' + error)
    let {
      message
    } = error;
    if (message == "Network Error") {
      message = "后端接口连接异常";
    } else if (message.includes("timeout")) {
      message = "系统接口请求超时";
    } else if (message.includes("Request failed with status code")) {
      message = "系统接口" + message.substr(message.length - 3) + "异常";
    }
    
    return Promise.reject(error)
  }
)

export default request
